初轧温度对Ti2AlNb钛合金环件径-轴向轧制过程的影响.pdfVIP

HotWorkingTechnology2023,Vol.52,No.3

锻压技术

初轧温度对Ti2AINb钛合金环件

径-轴向轧制过程的影响

朱艳春，邵珠彩，牛勇

(太原科技大学机械工程学院，山西太原030024)

摘要：基于SimufactForming有限元软件对Ti2AINb钛合金径-轴向环件轧制过程进行了数值模拟，研究了不

同初轧温度对驱动辊径向轧制力能参数以及环件成形后的等效应变、温度的影响规律。结果表明：随着环件成形温

度的升高，在环件轴向截面，等效应变标准差分布越来越均匀，而温度标准差分布差异却越来越大；在环件轧制初

期，温度对轧制力影响显著，驱动辊轧制力增加速度及其峰值随环件成形温度的升高逐渐降低；在环件轧制后期，温

度对轧制力的影响很小。

关键词：径-轴向环件轧制；Ti2AINb钛合金；初轧温度；等效塑性应变；轧制力

D0I:10.14158/ki.1001-3814

中图分类号：TG335.11文献标识码：A文章编号：1001-3814(2023)03-0084-04

EffectofInitialRollingTemperatureonRadial-axialRollingProcess

yRing

ofTi2AINbTitaniumAlloy

ZHUYanchun,SHAOZhucai,NIUYong

(SchoolofMechanicalEngineering,TaiyuanUniversityofScienceandTechnology,Taiyuan030024,China)

Abstract:BasedonSimufactFormingfiniteelementsoftware,theradial-axialrollingprocessofTi2AINbtitaniumalloy

ringwassimulatednumerically.Theeffectsofdifferentinitialrollingtemperaturesontheforceandenergyparametersof

drivingrollerradialrollingandtheequivalentstrainandtemperatureoftheringafterformingwerestudied.Theresultsshow

thatwiththeincreaseoftheformingtemperatureofthering,thedistributionoftheequivalentstrainstandarddeviationismore

andmoreuniformintheaxialsectionofthering,butthedifferenceofthetemperaturestandarddeviationdistributionismore

andmorelarge.Attheinitialstageofringrolling,thetemperaturehasasignificanteffectontherollingforce,andthespeed

andpeakvalueofthedrivingrollsrollingforcedecreasewiththeincreaseofringformingtemperature.Atthelaterstageof

ringrolli